Representation of the Denmark Strait overflow in a <i>z</i>-coordinate eddying configuration of the NEMO (v3.6) ocean model: resolution and parameter impacts

Colombo, Pedro; Barnier, Bernard; Penduff, Thierry; Chanut, Jérôme; Deshayes, Julie; Molines, Jean-Marc; Le Sommer, Julien; Verezemskaya, Polina; Gulev, Sergey; Treguier, Anne-Marie

doi:https://doi.org/10.5194/gmd-13-3347-2020

Articles | Volume 13, issue 7

https://doi.org/10.5194/gmd-13-3347-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Nucleus for European Modelling of the Ocean - NEMO

https://doi.org/10.5194/gmd-13-3347-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 7

Development and technical paper

|

30 Jul 2020

Development and technical paper |

| 30 Jul 2020

Representation of the Denmark Strait overflow in a z-coordinate eddying configuration of the NEMO (v3.6) ocean model: resolution and parameter impacts

Pedro Colombo, Bernard Barnier, Thierry Penduff, Jérôme Chanut, Julie Deshayes, Jean-Marc Molines, Julien Le Sommer, Polina Verezemskaya, Sergey Gulev, and Anne-Marie Treguier

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Final revised paper (published on 30 Jul 2020)
Preprint (discussion started on 14 Jan 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review comments', Anonymous Referee #1, 03 Feb 2020
- AC1: 'Reply to RC1', Pedro Colombo, 16 Mar 2020
RC2: 'gmd-2019-272', Anonymous Referee #2, 06 Feb 2020
- AC2: 'Reply to RC2', Pedro Colombo, 16 Mar 2020
RC3: 'review: Main question: what processes does model start to resolve at fine vertical resolution: added shear generating turbulence?', Anonymous Referee #3, 14 Feb 2020
- AC3: 'Reply to RC3', Pedro Colombo, 24 Mar 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Pedro Colombo on behalf of the Authors (24 Mar 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (10 Apr 2020) by James Maddison

ED: Publish subject to minor revisions (review by editor) (13 May 2020) by James Maddison

AR by Pedro Colombo on behalf of the Authors (26 May 2020) Author's response Manuscript

ED: Publish subject to technical corrections (09 Jun 2020) by James Maddison

AR by Pedro Colombo on behalf of the Authors (15 Jun 2020) Author's response Manuscript

Short summary

In the ocean circulation model NEMO, the representation of the overflow of dense Arctic waters through the Denmark Strait is investigated. In this z-coordinate context, sensitivity tests show that the mixing parameterizations preferably act along the model grid slope. Thus, the representation of the overflow is more sensitive to resolution than to parameterization and is best when the numerical grid matches the local topographic slope.